Fangrui Product Details 1. Nx9 1.39 Inch Color Screen Smart Watch,support Heart Rate Monitoringblood Pressure Monitoring 2. About Product 3. Cpu: Rtl8762dk+hn333 4. Ram+romram: 64mb Flash 5. Screen Display: 1.39" Ips Screen Resolution360x360 6. Battery Capacity: 400mah Lithium Polymer Battery 7. Bluetooth Version: Ble 5.1 8. Stanby Time: About 30days 9. Working Time: About 10 Days 10. Charing Time: 3h 11. Waterproof Level: Ip68 12. App: Fitcloudpro 13. Watch Languages: 14. Chinese, English, German, French, Italian, Spanish, Japanese, Polish, Russian, Portuguese, Vietnamese, Arabic, Hebrew, Thai, Croatian, Turkish, Czech, Dutch, Indonesian, Malaysian, Finnish 15. Language, Greek, Romanian), The Factory Default Is English 16. Function 17. Bluetooth Calling 18. Heart Rate Monitoring, Blood Oxygen Monitoring, Blood Pressure Monitoring 19. Time ,pedometer,calorie Consumption,distance Calculation 20. Multiple Sport Modes 21. Sleep Monitoring (sleep Time, Sleep Quality) 22. Calls To Remind,sms Reminder,third-party Messaging Reminder :multilingual Push 23. Task Reminder (sedentary Reminder) 24. Music Control 25. Synchronous Data To Apkapp